Home / 99,072.76-148,619.52-42,918.56

Finding the Fourth Proportional to 99,072.76, 148,619.52 and 42,918.56

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Solution

The fourth proportional to 99,072.76, 148,619.52 and 42,918.56 is: 64,382.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,072.76 : 148,619.52 = 42,918.56 : x
  2. Step 2: Convert to fraction form
    99,072.76/148,619.52 = 42,918.56/x
  3. Step 3: Cross multiply
    99,072.76x = 148,619.52 × 42,918.56
  4. Step 4: Simplify right side
    99,072.76x = 6,378,535,786.29
  5. Step 5: Solve for x
    x = 6,378,535,786.29/99,072.76
  6. Step 6: Final answer
    x = 64,382.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.